Photographs and text examine the world of mammals, depicting their development, feeding habits, courtship rituals, protective behavior, and physical adaptation to their various ways of life.

Presents an overview of mammals, including their history, various kinds, physical characteristics, behavior, and endangered and extinct species.

Introduces mammals, showing and describing the main groups and discussing their anatomy, habitats, reproduction, and diet.

Explores the world of mammals, identifying their characteristics and describing individual species.

Introduces such notable mammals as the elephant, sloth, koala, and porcupine, explains what makes them unique, and describes the important characteristics of the entire group.

Looks at the small Indian mongoose and examines how it was introduced to control rats but became an invasive species on islands outside of its native South Asia, how it causes problems, and how people have attempted to deal with it.

More than 90 types of mammals are included. Detailed illustrations highlight special features of each animal's body, and "x-ray" views with annotations describe the skeletons. Fact boxes and captions provide additional information, such as size, color, distinguishing features and feeding habits.

Liz has disappeared and the trail leads to Herp Haven, which is some kind of spa for reptiles. The class decides to lead a rescue mission, on which they learn about reptiles and how they need to move from place to place to be comfortable because they are cold-blooded. Ms. Frizzle turns some of the students into reptiles.